Oscar De La Hoya insists he is confident of conquering Floyd Mayweather in their super-fight in Las Vegas tomorrow, despite entering the bout as the clear underdog.

Although his opponent has never lost, the 34-year-old and his camp have no qualms as they gear up for the fight for the WBC light-middleweight belt at the MGM Grand which could herald the retirement of the 'Golden Boy'.

"My guy is ready to go," said Freddie Roach, De La Hoya's trainer. "Don't miss this one. It might not last that long."

Last May, De La Hoya was convincing as he floored Ricardo Mayorga three times, twice in the sixth round, showing he could still compete at a high level and gained confidence for his preparations for Mayweather.

For this bout, De La Hoya left his normal training grounds in Big Bear, California and trained in Puerto Rico, thriving in an intense camp that he said has him in the best shape of his life.

He claims he is physically and mentally prepared to handle Mayweather's quickness and toughness and has fought the fight repeatedly in his mind, visualising a victory.

"I expect the best from Floyd Mayweather, and I am prepared for that," De La Hoya said. "I'm confident with the game plan executed."

While walking away with a victory is De La Hoya's main objective, he can take solace win or lose with the success of the fight.

Backed by his Golden Boy Promotions, the fight is serving as a bridge to De La Hoya's life after competition.

Mayweather has been the more vocal of the pair in the run-up to the fight, trash-talking his way around the promotional circuit.

"I'm so sick of having to shut him up," said De La Hoya, who started the promotion company last year with the focus of bringing boxing closer to Hispanic communities.

The pre-fight hype took another spin thanks to Mayweather's father, Floyd Sr., who has spent portions of the last few years not talking to his son.

After Floyd Mayweather Jr. refused to give his father, a former fighter and trainer, a ticket to the bout, De La Hoya and his company made sure the father would be in attendance.

The elder Mayweather trained De La Hoya for his fight with Mayorga but left his corner in January, stating the price was not right to train against his son.